package com.example.day02;

/**
 * @author Lenovo
 */
public class Demo3 {
    public static void main(String[] args) {
        byte b1 =10;
        byte b2 =20;
        int num = b1+b2;
        System.out.println(num);

        int num1 = 10;
        double num2 = 20.5;
        double num3 = num1+num2;
        System.out.println(num3);
    }
}
